6-Bromo-4-[2-(4-fluorobenzylidene)hydrazin-1-ylidene]-1-methyl-3,4-dihydro-1H-2λ6,1-benzothiazine-2,2-dione
نویسندگان
چکیده
In the title compound, C(16)H(13)BrFN(3)O(2)S, the dihedral angle between the aromatic rings is 2.55 (19)° and the C=N-N=C torsion angle is 178.9 (3)°. The conformation of the thia-zine ring is an envelope, with the S atom displaced by -0.811 (3) Å from the mean plane of the other five atoms (r.m.s. deviation = 0.042 Å). In the crystal, C-H⋯O inter-actions link the mol-ecules and weak aromatic π-π stacking between the fluoro-benzene and bromo-benzene rings [centroid-centroid separation = 3.720 (2) Å and inter-planar angle = 2.6 (2)°] is also observed.
منابع مشابه
6-Bromo-1-methyl-4-[2-(4-nitrobenzylidene)hydrazin-1-ylidene]-2,2-dioxo-3,4-dihydro-1H-2λ6,1-benzothiazine
In the title compound, C(16)H(13)BrN(4)O(4)S, the dihedral angle between the aromatic rings is 4.1 (2)° and the C=N-N=C torsion angle is 175.5 (3)°. The nitro group is almost coplanar with the benzene ring to which it is attached [dihedral angle = 2.9 (7)°]. The thia-zine ring has an S-envelope conformation with the S atom displaced by 0.819 (3) Å from the mean plane of the other five atoms (r....
متن کامل1-Methyl-4-[1-(1-phenylethylidene)-hydrazin-2-ylidene]-3,4-dihydro-1H-2λ6,1-benzothiazine-2,2-dione
In the title compound, C(17)H(17)N(3)O(2)S, the phenyl ring is oriented at dihedral angles of 8.5 (2) and 1.17 (14)°, respectively, to the C=N-N plane and the fused aromatic ring. The thia-zine ring adopts an envelope conformation with the S atom at the flap. In the crystal, a weak C-H⋯O inter-action connects the mol-ecules, forming a helical chain along the a axis.
متن کاملrac-(3S,4Z)-3-Chloro-4-[2-(3-fluorobenzylidene)hydrazinylidene]-1-methyl-3,4-dihydro-1H-2λ6,1-benzothiazine-2,2-dione
In the title compound, C(16)H(13)ClFN(3)O(2)S, the dihedral angle between the benzene rings is 4.47 (3)°. The conformation of the thia-zine ring is a half-chair and the Cl atom is in an axial orientation. In the crystal, mol-ecules are linked by C-H⋯F inter-actions, generating C(12) chains propagating in [011]. Aromatic π-π stacking inter-actions [centroid-centroid separations = 3.753 (2) and 3...
متن کامل(4Z)-1-Methyl-4-[(2E)-2-(4-methylbenzylidene)hydrazin-1-ylidene]-3,4-dihydro-1H-2λ6,1-benzothiazine-2,2-dione
In the title compound, C(17)H(17)N(3)O(2)S, the dihedral angle between the aromatic rings is 6.3 (5)° and the C=N-N=C group is statistically planar [torsion angle = 179.8 (8)°]. The conformation of the thia-zine ring is an envelope, with the S atom displaced by 0.823 (9) Å from the mean plane of the other five atoms (r.m.s. deviation = 0.012 Å). In the crystal, C-H⋯O inter-actions link the mol-...
متن کامل6-Bromo-1-methyl-4-[2-(1-phenylethylidene)hydrazinylidene]-3,4-dihydro-1H-2λ6,1-benzothiazine-2,2-dione
In the title compound, C(17)H(16)BrN(3)O(2)S, the dihedral angle between the aromatic rings is 1.24 (15)° and the C=N-N=C torsion angle is 167.7 (3)°. The conformation of the thia-zine ring is an envelope, with the S atom displaced by 0.805 (3) Å from the mean plane of the other five atoms (r.m.s. deviation = 0.027 Å). In the crystal, C-H⋯O inter-actions link the mol-ecules into C(10) [010] cha...
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